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Exploiting High Rate Differential Algebraic STBC in Downlink Multiuser MIMO Systems
2018
IET Communications
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In particular, we propose to use a full rate downlink algebraic transmission scheme combined with a differential space time scheme for multiuser MIMO systems. ...
Since channel state information (CSI) is not needed at the differential receiver, differential schemes are ideal for multiuser systems to shift the complexity from the receivers to the transmitter, thus ...
Differential Perfect STBC for MU-MIMO with Downlink Transmission In this section, the differential encoding and decoding process for downlink transmission in a MU-MIMO system is discussed. ...
doi:10.1049/iet-com.2018.5208
fatcat:xw6m2dy675bp5nrkzh2i7mwrwa
A Novel Differential Modulation Scheme Using Full-Rate STBC for 4×4 MIMO OFDM
2019
International Journal of Electrical and Electronic Engineering & Telecommunications
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In this paper, we modify a quasi-orthogonal STBC (QO-STBC) to be used as a unitary matrix generator, and then we introduce an element-wise calculation concept to minimize the system complexity. ...
the coherent transmission. ...
In this paper, we propose a modified QO-STBC for four transmitting antennas as a unitary matrix generator. ...
doi:10.18178/ijeetc.8.6.307-313
fatcat:elcgqxtjgve7fjqsbrqhk5lixq
Differential STBC NOMA: A new approach to downlink cooperative NOMA
2022
Journal of Electrical Engineering
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Hence, the differential STBC-CNOMA seems to be a better and more effective solution to enhance system performance. ...
Due to the ability of massive connectivity, large bandwidth, and low latency, the non-orthogonal multiple access (NOMA) is considered the best approach for the 5th generation and beyond. ...
In STBC cooperative part, cooperation is done between all the users by applying differential 2 × 2 STBC transmission. ...
doi:10.2478/jee-2022-0021
fatcat:sddxolm2mjh53mss7pxrmmyhbu
A Simple Differential Modulation Scheme for Quasi-Orthogonal Space-Time Block Codes with Partial Transmit Diversity
2007
EURASIP Journal on Wireless Communications and Networking
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We report a simple differential modulation scheme for quasi-orthogonal space-time block codes. ...
Simulation results show that these partial-diversity codes can provide very useful results at low SNR for current communication systems. ...
transmission matrices might be generated. ...
doi:10.1155/2007/97475
fatcat:crgwiu5njbdx5mxqw6vgewv4fy
On Differential Modulation in Downlink Multiuser MIMO Systems
[article]
2017
arXiv
pre-print
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In this paper, we consider a space time block coded multiuser multiple-input multiple-output (MU-MIMO) system with downlink transmission. ...
Specifically, we propose to use downlink precoding combined with differential modulation (DM) to shift the complexity from the receivers to the transmitter. ...
DIFFERENTIAL STBC FOR MU-MIMO WITH DOWNLINK TRANSMISSION In this section, the differential encoding and decoding process for downlink transmission in a MU-MIMO system is discussed. ...
arXiv:1707.01603v1
fatcat:mdndvx35abcmbgfj6a3ilwy5pa
Improvement of FER using Differential Space-Time Block Code
2020
International journal of recent technology and engineering
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For this reason, in MIMO systems differential modulation schemes are estimated. ...
When a coherent transmission system is considered, the estimation of radio channel impulse response is done precisely. ...
For this reason, in MIMO systems differential modulation schemes are estimated. ...
doi:10.35940/ijrte.e6353.018520
fatcat:b7lt2vtry5gtjenxlhbhxp27ma
On Differential Modulation In Downlink Multiuser Mimo Systems
2018
Zenodo
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DIFFERENTIAL STBC FOR MU-MIMO WITH DOWNLINK TRANSMISSION In this section, the differential encoding and decoding process for downlink transmission in a MU-MIMO system is discussed. ...
Fig. 1 . 1 STBC MU-MIMO downlink transmission system.
Fig. 2 . 2 SER performance of MU-MIMO STBC downlink precoding with coherent and differential detection using BD and OS schemes for N k = 1. ...
Similarly, the equivalent differential decoder for the OS scheme can be constructed. ...
doi:10.5281/zenodo.1160056
fatcat:bjpzzadvazhmlhvt7rvf5gpk5y
Precoded Differential Orthogonal Space-Time Modulation Over Correlated Ricean MIMO Channels
2008
IEEE Journal on Selected Topics in Signal Processing
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This paper generalizes the idea of differential modulation for MIMO system to the non-orthogonal space-time block coding. ...
system of [11] [7] and Differential STBC of [37] of the proposed differential coding scheme for nonorthogonal and orthogonal STBCs with non-unitary constellations: −•− simulated SER, · · · · ...
doi:10.1109/jstsp.2008.920669
fatcat:fgflejg4fbcihfiembo5hmuhrm
A new high-rate differential space-time block coding scheme
2003
IEEE Communications Letters
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Index Terms-Differential encoding, interference cancellation, space-time block code (STBC), spatial multiplexing. ...
A new high-rate differential space-time transmission scheme based on spatial multiplexing of Alamouti-encoded information streams is developed in this letter. ...
For high-mobility broadband scenarios (such as the forthcoming fourth-generation multimedia wireless systems), it becomes very costly and difficult in practice to estimate and track the large number of ...
doi:10.1109/lcomm.2003.820095
fatcat:zidixqjtxzapvcqpxkmaxcmtui
An Efficient Differential MIMO-OFDM Scheme with Coordinate Interleaving
2008
EURASIP Journal on Wireless Communications and Networking
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We propose a concatenated trellis code (TC) and coordinate interleaved differential space-time block code (STBC) for OFDM. ...
with existing concatenated TC and differential STBC. ...
ACKNOWLEDGMENTS The authors would like to thank the anonymous reviewers for their constructive comments. ...
doi:10.1155/2008/734258
fatcat:utw2rlipuvgxjfd3zf4zsjyeiy
A new subspace method for blind estimation of selective MIMO-STBC channels
2009
Wireless Communications and Mobile Computing
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In this paper, a new technique for the blind estimation of frequency and/or time-selective multiple-input multipleoutput (MIMO) channels under space-time block coding (STBC) transmissions is presented. ...
as STBC-orthogonal frequency division multiplexing (OFDM), space-frequency block coding (SFBC), time-reversal STBC, and time-varying STBC encoded systems. ...
As can be seen, the channel can be considered approximately constant during the transmission of one STBC block, which is a common requirement for all the STBC-based systems, but it rapidly changes during ...
doi:10.1002/wcm.837
fatcat:rbjrsijol5fxhbdqndghehysem
Energy-based transmission strategy selection for wireless sensor networks
2005
GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.
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Based on this analysis, general guidelines are presented for optimal transmission strategy selection in some typical scenarios, aiming at minimum energy consumption with a target BER. ...
In this paper, Energy efficiency of relevant transmission strategies is studied both for wideband asymptotes and realistic system settings. ...
In this paper, we assume a full-rate STBC for simplicity. In general the relevant expressions should be scaled by r, the rate of STBC. ...
doi:10.1109/glocom.2005.1578447
dblp:conf/globecom/ZhangD05
fatcat:vnvu4ubpxnggtbhwbbzfubenyu
A Unified Full-Rate Stbc Design With Reduced-Complexity Coherent And Differential Ml Decoding
2008
Zenodo
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In this section, we investigate differential transmission for our proposed code and derive the exact ML differential decoding metric.
A. ...
Differential Encoder Assuming differential transmission of M MTD 2 codewords and denoting the kth transmitted codeword by X(k) for 0 ≤ k ≤ M − 1. ...
doi:10.5281/zenodo.40862
fatcat:nvwt4mwp4jcnvps2ijcbdxyo3i
Differential diversity-embedding space-time block coding for 2 and 4 transmit antennas
2008
IEEE Transactions on Wireless Communications
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A novel differential DE-STBC scheme is proposed in this paper to eliminate the need for channel estimation at the receiver which is especially costly with multiple transmit and receive antennas. ...
Most previously proposed differential schemes in the literature are based on orthogonal STBC and hence are not applicable to the nonorthogonal family of DE-STBC considered in this paper. ...
Fig. 3 compares the throughput of the DE-STBC design in (2) with that of the Alamouti STBC assuming differential transmission where it can be seen that the former outperforms the latter for medium to ...
doi:10.1109/twc.2008.070139
fatcat:knxy6t6so5ciphp5lxarinpzmq
A Transmit Diversity Technique for OFDM System
IJIREEICE - Electrical, Electronics, Instrumentation and Control
2015
IJIREEICE
IJIREEICE - Electrical, Electronics, Instrumentation and Control
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The BER for OFDM system without including STBC is 1.776x10 -3 and including STBC is 1.621x10 -3 over Rician Channel. ...
Whereas, over Rayleigh channel the BER for OFDM system without including STBC is 1.834x10 -5 and including STBC, it is reduced to 6.345x10 -6 for the same SNR of 14dB. ...
The Fig. 2 shows an encoder structure for STBC. In general, a space time block code is defined by a 𝑛 𝑇𝑋𝑃 transmission matrix X. ...
doi:10.17148/ijireeice.2015.3315
fatcat:gherhlobovdp3h5fxcvvqqehpa
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